Underclearer-roll.



N.E.LUCAS.\

UNDERCLEARER ROLL.

APPLICATION mm JAN-22. 19!].

1,274,570. I Patented Aug-6, 1918.

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UNITED STATES PATENT onnron.

{ NOAH E. LUCAS, OF NORWICH, CONNECTICUT.

UNDERCLEARER-ROLL.

Specification of Letters Patent.

Patented Aug. 6,1918.

Application filed January 22, 1917. Serial No. 143,658.

mills, in connection with spinning, drawing,

and rewinding or spooling machinery, for automatically removing lint and loose threads from yarns, more particularly for cleaning such yarns as they are being passed to, and rewound upon spools or bobbins, and my present purpose is to provide a practically everlasting roll as a substitute for, and improvement upon, the cloth-covered wooden rolls now commonly used.

My invention is illustrated in the annexed drawings, in which Figure 1 is a view of an under-clearer roll embodying my present improvements and Fig. 2 is a longitudinal, central, sectional, view of said roll. Fig. 3 shows a slightly modified form of my said invention, and in Fig. 4 I have shown an end view of the rolls of Figs. 1, Qand 8.

My improved under-clearer roll consists essentially of a jacket of cork mounted on journal bearings, and novel means for reinforcing'the ends of said cork and for preventing the .undue wearing away of said ends. 7

Referring to the annexed drawings, the letter a denotes the roll proper, the same being formed of cork which provides a contact surface that is specially suitable for collecting and retaining lint, and is also practically indestructible. The roll of Fig. 1 is built up of a plurality of corks which are mounted, end-to-end, on a central core or rod 7) which rod is of such length that its ends project beyond the ends of the cork roll and serve as journals for the support of said roll. In the Fig. 3 the roll proper, a, is formed of a single integral mass of cork produced by mo ding and compressing a composition of comminuted cork and cement and. then turning or grinding the same to the desired size; the journals being provided by forcing short wire rod sections into the roll thus provided instead of passing a rod completely through the cork roll as in Figs.

1 and 2.

I will now describe what I regard as novel means for protecting the otherwise exposed ends of the cork roll against undue wear and for expanding said ends in the event that they do become slightly worn.

Before assembling the several parts of the complete structure I cup the ends of the cork roll as seen in Figs. 2 and 8, and I screw upon the journal rod 7) a nut 0 which is formed as a frustum of a cone of practically the same pitch as the walls of the cupped ends of the roll a. I then screw upon the journal rod at each end of the roll a fiber nut d. The said fiber nut, as well as the conical nut 0, are bored to provide openings which may be adjusted to register with each other in order that one or more screws 0 may be passed therethrough and into the cork (see Figs. 2 and 3). When the parts are thus assembled the cone 0 provides a substantial reinforce for the relatively softer, surrounding, end of the cork roll the fiber nut serves both as a check nut and as a practically non-wearable extension for the cork roll, and the screw 6 serves to prevent the backward rotation and consequent loosening of the combined nuts 0 and (Z. c

In the event that the cork roll becomes slightly worn, the screws 6 may be removed, the fiber check-nut d unscrewed, and the cone 0 may then be screwed home in the cupped cork, thus operating to expand the worn circumferential end. portion of the cork and force it up to its original size again. After this has been done the checknnt and screws are returned to their respective places and the complete roll is ready for further service. 7

Having thus described my invention, I claim as new and wish to secure by Letters Patent:

An under-clearer roll comprising, in combination, a cork jacket having recessed ends, ournal bearings for said roll, conical wash-' ers mounted on said journals and seated in the said recesses, binding nuts of fiber screwed upon said journals, and means conslstmg of a dowel screw for locking the said nuts and'washers against rotatlon with respect to each other.

NOAH E. LUCAS.

Copies of this patent may be obtained for five'cents each, by addressing the Commissioner of Iatents,

' Washington, I). G. 

